Spotted this in a thread on the openenergymonitor forum,
Hi, in Norway a new electricity usage policy is going to be implemented next year. If I use more than a certain amount of kWh within 1 hour, I get a penalty for the entire month. There will likely be two steps, 5kWh and an even higher penalty if I use >10kWh
85no 58mm solar thermal tubes, 28.5Kw PV, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, 8kWh Growatt storage, 22 x US3000C Pylontech, Sofar ME3000's, Brosley wood burner and 250lt DHW
It's understandable if you want to reduce (or limit) grid demand. Something you can do if you are not pretending that the free market drives all decisions.
Even if the country's supply is fully green and most homes are all-electric, if everyone goes for BEVs there might be massive demand at 5 or 6pm when they get home, plug in the BEV and start cooking and heating the house. Embodied energy (or just the cost) of upgrading the grid to cope with peak demand when people don't have to pay any attention to externalities isn't sensible.
After all, isn't this a bit like what Octopus agile is doing?
People with batteries must be laughing. (Can you blend grid supply up to a defined max and top up by battery drawdown with the controllers currently available?)
A
2.0 kW/4.62 MWhr pa in Ripples, 4.5 kWp W-facing pv, 9.5 kWhr batt
30 solar thermal tubes, 2MWhr pa in Stockport, plus Congleton and Kinlochbervie Hydros,
Most travel by bike, walking or bus/train. Veg, fruit - and Bees!
Couldn't you still use batteries, but instead of using them to concentrate your energy use into a small cheap window, the batteries could spread it out...
12x 340W JA Solar panels (4.08kWp)
3x 380W JA Solar panels (1.14kWp)
5x 2.4kWh Pylontech batteries (12kWh)
LuxPower inverter/charger
(Artist formally known as ******, well it should be obvious enough to those for whom such things are important.)
I use about 6 kWhr per day, although we do use gas for cooking and heating. 5 or 10 kWhr in any hour doesn't seem an unreasonable limit...
2.0 kW/4.62 MWhr pa in Ripples, 4.5 kWp W-facing pv, 9.5 kWhr batt
30 solar thermal tubes, 2MWhr pa in Stockport, plus Congleton and Kinlochbervie Hydros,
Most travel by bike, walking or bus/train. Veg, fruit - and Bees!
If they are not careful, people will have to drive to a motorway/supermarket/?? to charge their cars and avoid the tax at home - even though it would probably wrk out more expensive (remember some people used more fuel looking for a petrol sttion with fuel than they actually wanted in the first place.) Presumably there is more to this that has not been covered in the simple snippet.
